When Space is pressed, system should pick three random instances of the same object (there are 9 copies of it on the layout) and destroy them. What is happening, though, is that the number of instances destroyed is inconsistent: sometimes it works correctly, sometimes it destroys only two, and sometimes just one. The code is literally just that:

Why is this not working?

PS: This is the first time I work with both "Pick Instances" and loops, so probably I'm missing some optimization setting/tool that I'm not aware of.